<!DOCTYPE html>
<svg width="100" height="100">
  <rect id="ref" x="20" y="30" width="10" height="10" fill="red"></rect>
  <rect id="move" x="10" y="10" width="10" height="10" fill="green" transform="matrix(1, 0, 0, 1, 10, 20)"></rect>
</svg>
